Which chemical reaction involves water as a reactant and results in the breakdown of compounds?

Which chemical reaction involves water as a reactant and results in the breakdown of compounds?

• A. Hydrolysis
• B. Oxidation
• C. Fermentation
• D. Condensation

Answer: (A)

Hydrolysis is the process where a molecule is split into smaller pieces by adding a water molecule. In this reaction, water donates a hydrogen to one fragment and a hydroxyl group to the other, breaking bonds that held the larger compound together. That direct use of water to cleave bonds is what makes hydrolysis the typical mechanism for breaking down molecules, such as when disaccharides like sucrose are split into glucose and fructose or when fats are hydrolyzed into glycerol and fatty acids with the help of enzymes. Oxidation involves electron transfer and often reaction with oxygen, not the simple addition of water to break bonds. Fermentation is a metabolic process that converts sugars into other products like alcohol or lactic acid, not primarily defined by water-driven bond cleavage. Condensation, on the other hand, builds larger molecules by removing water (a dehydration synthesis), so water is produced rather than consumed in the bond-breaking step.

Hydrolysis is the process where a molecule is split into smaller pieces by adding a water molecule. In this reaction, water donates a hydrogen to one fragment and a hydroxyl group to the other, breaking bonds that held the larger compound together. That direct use of water to cleave bonds is what makes hydrolysis the typical mechanism for breaking down molecules, such as when disaccharides like sucrose are split into glucose and fructose or when fats are hydrolyzed into glycerol and fatty acids with the help of enzymes.

Oxidation involves electron transfer and often reaction with oxygen, not the simple addition of water to break bonds. Fermentation is a metabolic process that converts sugars into other products like alcohol or lactic acid, not primarily defined by water-driven bond cleavage. Condensation, on the other hand, builds larger molecules by removing water (a dehydration synthesis), so water is produced rather than consumed in the bond-breaking step.